Question

y=-x+4
y=-6x+9 solution ?

Answer 1

Since you were not told which method to use in solving "system" equations, why not use this logic. We know that y = y
so lets put the two equations that equal y to equal each other like this:
-x + 4 = -6x + 9 We can now solve for x
-x + 6x+ 4= -6x + 6x + 9 by adding 6x to both sides getting 5x + 4 = 9
5x + 4 - 4= 9 - 4 by subtracting 4 from both sides getting 5x = 5
now divide both sides by 5 getting x = 1 We have now solved for x.

Answer 2

To solve for y, simply substitute the value for x in either one of the 2 equations you were originally given. Any questions?

Answer 3

Can you now solve for y? @raevenbennett